Title

Distance of ball

Problem Scenario

the catupult will brake

Broad Question

how far will a smooth ball go than than spiked ball

Specific Question

Dose the smooth ball go farther.

Hypothesis

The smooth ball will
go farther than the spiked ball

Graph of Hypothesis

Variables

Independent Variable:

distance dependent

Dependent Variable:

type of ball independent

Variables That Need To Be Controlled: catapult

Vocabulary List That Needs Explanation

ball,distance and catapult

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General Plan

Iam going to lanch the balls frome the catapult and record the data and make the graph

Potential Problems And Solutions

the balls will not launch.make big catapult with small springs

Safety Or Environmental Concerns

catapult brakes or spring's will snap

Experimental Design

(add the correct headings from the experimental design page before beginning)

What is your experimental unit?

This is the base unit of your experiment, for example, one plant, one ice cube, one dish. It is the thing you will be measuring.

Number Of Trials:

This is how many times you will repeat the experiment. I will repeat the trial 5 times for both of the balls.

Number Of Subjects In Each trial:

This is the number of different treatments you will use. For example, if you are comparing rust formation using salt and no salt, there would be 2 subjects in each trial. If you were comparing rust formation with no salt and three different amounts of salt, then you would have 4 subjects in each trial. Their is 2 in the experiment one smooth ball and one spiked ball

Number of Observations:

How many measurements will you take for each experimental unit times the number or trials.Their will be 10 trials 5 smooth and 5 spiked.

When data will be collected

Looking for an actual date or dates here. This is requiring you to commit to your project.The day I do the experiment.

Where will data be collected?:

Be specific. The data will be collected in a Google spread sheet.

Resources and Budget Table

Item	Number needed	Where I will get this	Cost
tennis ball	1	teacher	$0
spiked ball	1	teacher	$0
catapult	1	teacher	$0
ruler	1	teacher	$0

Detailed Procedure

step 1 Load the catapult
step 2 launch the balls from the catapult
step 3 Mesmer the distance from the catapult

step 4 record the data

Diagram

Photo List

1 Spiked ball

1 Smooth ball
1 Catapult
1 Ruler
Time Line

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Data Table

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Data Analysis

All Raw Data

number of trials	tennis ball	spiked ball
1	8.63	1.28
2	6.72	1.17
3	9	1.28
4	9.73	1.23
5	6.89	0.59
	tennis ball	spiked ball
	8.194	1.11

Graphs

this is my graph

Photos

Results

Conclusion

I accept my hypotheses
because what I said worked

Discussion

Benefit to Community and/or Science

this can show kids history is
fun and educational
and how to be safe
with science.
Background Research
The catapult was
used in mid evil times
to get big and far
hits on the targets.
References:
Thadani, Rahul. Buzzle.com. Buzzle.com, 10 Nov. 2012. Web. 21 Mar. 2013.

Abstract